Evaporator.



No. 831,572. PATENTED SEPT. 25, 1906.

J. L. SMITH. EVAPORATOR.

APPLIOATION FILED JAN.19. 1906.

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THE mama/s psrsns :0, WASHINGTON, u. c.

Ute/Lung JOHN LEANDER SMITH, OF CINCINNATI, OHIO.

EVAPORATOR.

Specification of Letters Patent.

Patented Sept. 25, 1906.

A pli atio filed January 19,1906. Serial No. 296,807.

To all whom it may concern:

Be it known that 1, JOHN LEANDER SMITH, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Evaporators, of which the following is a specification.

My invention relates to improvements in evaporators adapted to be used to moisten the air where stoves, hot-air furnaces, and the like are used.

My device is adapted to be placed on a register or stove, occupies but little space thereon, is so formed as to hold enough water so that it seldom needs refilling, and exposes to the air a large amount of moistened surface from which evaporation may take place.

My invention is illustrated in the accompanying drawings, in which" Figure 1 is an elevation of my evaporator in perspective. Fig. 2 is a vertical axial section of my evaporator in the same position as in Fig. 1.

Referring to the drawings, A represents the basin that rests on the register, stove, or the like and may be any convenient watertight open-topped vessel, but preferably has nearly perpendicular sides a and an outwardly and. upwardly projecting circumferential flange a.

A reservoir B is preferably open at the upper end, has conical sides, is of size adapting it to fit down into the basin A, and when the conical sides of B have a suitable absorbent covering such covered reservoir seats closely against the upper portion of the inner surface of the sides a of the basin A.

B may be entirely open at the lower end or, to better retain its shape, it may have an end I), perforated by hole b There may be one or a number of these holes, as desired. A and B are made of metal or other material impervious to moisture. The sides 1) of the reservoir B are surrounded by any convenient absorbent material C, either made conical in shape to be slipped over the small end of the member B or of sheet material to be wound on. Ordinary blotting-paper is effective as an absorbent covering.

The operation of the device is as follows:

Place the absorbent covering C about the conical reservoir B and press bolt down firmly into the basin A to make a tight joint. Fill B with water to any convenient height, as line as The water will not flow out, overflowing basin A, but by absorption and capillary attraction will moisten the covering C and keep it moist throughout all or a portion of its height, depending upon the quantity of water in the reservoir B and the degree of dry heat to which the device is at the time subjected. While heat is so applied, there will be no excess of moisture in the covering C above the flange a; but if the res ervoir is nearly full when the heat ceases and the device stands thus in a cold room for a considerable time, as overnight, there is sometimes enough excess moisture to cause some precipitation. Hence the circular trough formed by the flange a is provided to catch such excess.

Any shape basin, reservoir, &c., can be used if the parts lit so as to form the proper joint when the reservoir covered with absorbent material is pressed into the basin. I prefer that the reservoir should not extend to the bottom of the basin, that the flow of water there may be free.

It is obvious that the evaporation from the surface of the water in the reservoir will be the same as with the ordinary basin now used.

The device is so simple that any one can charge it, it is cheap enough to be within the means of all housekeepers, yet it exposes a large amount of saturated surface hence has great efficiency.

1 claim as my invention and desire to se cure by Letters Patent of the United States- 1. An evaporator, adapted to be used with hot-air heating devices; having an opentopped vessel with substantially perpendicular sides and upwardly and outwardly extending brim, a conical open-topped reservoir, open to the passage of fluid at the bottom and an absorbent close-fitting outward covering for said reservoir; said reservoir when so covered adapted to be pressed tightly into said basin and seat against its SIC es.

2. In an evaporatorof the character indi- I my hand in presence of two subscribing Witcated, the combination of a basin, A, with nesses. circumferential trough-forming flange, a,

conical reservoir, B, having an opening 1n its JOHN LEANDER SMITH 5 bottom, and absorbent covering, 0, adapted Witnesses:

to fit closely over said reservoir. JOSEPH R. GARDNER,

In testimony whereof I have hereuntdset CHAS. HERBERT JONES. 

